#include <fstream>
#include <string>
#include <sstream>
#include <cctype>
using namespace std;
ifstream fin("abbreviation.in");
ofstream fout("abbreviation.out");
int t;
string s;
stringstream ss;
string word;

int main() {
	fin>>t;
	getline(fin,s);
	while(t>0) {
		getline(fin,s);
		stringstream ss(s);
		while(ss>>word) {
			for(int i=0;i<word.length();i++) {
				word[i]=tolower(word[i]);
			}
			if(word.length()>=3&&word!="and"&&word!="for"&&word!="the") {
				fout<<char(toupper(word[0]));
			}
		}
		fout<<endl;
		t--;
	}
	fin.close();
	fout.close();
	return 0;
}